Reduction gear



FIG. 1 is a perspective view of a reduction gear showing our new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The circular portion in the center of each plan view is a hole.

The broken lines in the drawings depict unclaimed environmental subject matter. 

CLAIM The ornamental design for a reduction gear, as shown and described. 